This is an authentic TIFFANY Platinum Diamond .20ct Harmony Solitaire Engagement Ring 49 5. This ring is crafted of platinum and features a 2mm band that holds a round brilliant cut diamond weighing approximately .20 carats, with VS1 clarity and E color. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.